SIFFO high-density polyethylene (HDPE) steel skeleton reinforced composite pipe (SRPE pipe ) is a composite pipe with high-density polyethylene (HDPE) in both inner and outer layers, with a steel skeleton embedded in the middle. The steel skeleton is made of high steel-strength steel wires welded in a criss-cross pattern. This provides high tensile strength, enhances the strength of the pipe body, and has high pressure resistance. In addition, the inner and outer layers use HDPE or PE100 RC as raw materials, which can be made into lightweight pipes that are resistant to corrosive chemicals and withstand freeze-thaw cycles and continuous sub-zero temperatures without cracking. It is also highly wear-resistant and is not affected by acids and alkalis. In some high-temperature applications, the internal raw material can be adjusted to PERT, so that the SIFFO SRPE pipe has good temperature resistance, and the maximum operating temperature can reach 80 ℃. This product combines the corrosion resistance of plastic pipes with the high strength of metal pipes. It is widely used in the fields of petroleum, natural gas, chemical industry, municipal water supply and drainage, mining, electric power, marine engineering, etc., especially suitable for the transportation of high-pressure, high-temperature, and highly corrosive media.
Product Name | SIFFO HDPE Steel Skeleton Reinforced Composite Pipe (SRTP,SRPE) |
Specification | DN50 - DN600mm |
Pressure | PN10,PN16,PN20,PN25,PN30,PN35,PN40、 |
Raw Material | 100% Virgin Material PE100 and steel wire |
Standards | ISO4437,CJ/T123-2016,GB/T 17219 EN1555, AS/NZS4130, GOST18599, ASTM F714,CJ/T123-2016 |
Application | water supply, oil transportation, natural gas, mining,methane,, fire fight. |
Connection | Electrofusion Connection,Flange Connection |
Color | Black or Customized |
Product Series
Standard Type: For general pressure applications.
Reinforced Type: Higher pressure tolerance (up to 4.0MPa).
High-Temperature Type: Resists fluids up to 80°C (short-term 100°C).
Key Features
·Ultra-high strength: The steel skeleton provides extremely high tensile strength and ring stiffness, suitable for ultra-high pressure and large-diameter applications.
·High corrosion resistance: The HDPE layer protects the steel skeleton from chemical and electrochemical corrosion, extending the service life.
·High temperature resistance: The inner layer can be made of heat-resistant PERT material, which has good temperature resistance and the maximum working temperature can reach 80℃.
·Excellent pressure resistance: The steel skeleton structure gives the pipeline excellent resistance to external pressure, suitable for deep burial and heavy load environments.
·Long life: The designed service life exceeds 50 years, and the maintenance cost is low.
Lightweight and high strength: lighter than traditional steel pipes, easy to transport and install.
·Impact resistance: It still maintains high toughness in low temperature environments and has excellent impact resistance.
·Sanitary safety: The HDPE layer meets the sanitation standards for drinking water, is non-toxic, and does not breed bacteria.
Applications
City gas: municipal gas pipeline network, community gas supply
Industrial gas: gas transportation for chemical plants and power plants
Long-distance transportation: high-pressure gas long-distance pipelines
Water supply system: municipal water supply, agricultural irrigation
Special environment: highly corrosive soil, earthquake-prone areas
Petrochemical: chemical medium transportation, oil field water injection
Mining engineering: slurry transportation, tailings discharge
Power generation engineering: high-pressure brine transportation
Nominal Diameter | Allowable Deviation of Mean Inner Diameter | Nominal Pressure (PN,Bar) | |||||
PN10 | PN16 | PN20 | PN25 | PN30 | PN40 | ||
Pipe Main Body Thickness and Allowable Deviation (mm) | |||||||
50 | ±1 | - | - | - | 9.0 +1.4 | 10.0 +1.4 | 10.6 +1.6 |
63 | ±1 | - | - | - | 9.0 +1.4 | 10.0 +1.4 | 10.6 +1.6 |
80 | ±1 | - | - | - | 9.0 +1.4 | 10.0 +1.4 | 11.7 +1.8 |
100 | ±1 | - | 9.0 +1.4 | 9.0 +1.4 | 11.7 +1.8 | 11.7 +1.8 | 11.7 +1.8 |
125 | ±1 | - | 10.0 +1.5 | 10.0 +1.5 | 11.8 +1.8 | 12.5 +1.8 | 12.3 +1.8 |
150 | ±1 | 12.0 +1.8 | 12.0 +1.8 | 12.0 +1.8 | 12.0 +2.4 | 13.5 +2.4 | 15.5 +2.6 |
200 | ±1 | 12.0 +1.8 | 12.0 +1.8 | 12.5 +1.9 | 12.5 +1.9 | 14.0 +1.9 | - |
250 | ±0.8 | 12.0 +1.8 | 12.5 +1.9 | 12.5 +1.9 | 13.0 +2.0 | 15.0 +2.0 | - |
300 | ±0.8 | 12.5 +1.9 | 12.5 +1.9 | 12.5 +2.2 | - | - | - |
350 | ±0.8 | 15.0 +2.4 | 15.0 +2.4 | 15.5 +2.5 | - | - | - |
400 | ±0.5 | 15.0 +2.4 | 15.0 +2.4 | 15.5 +2.6 | - | - | - |
450 | ±0.5 | 15.5 +2.6 | 16.0 +2.6 | 16.5 +2.6 | - | - | - |
500 | ±0.5 | 15.5 +2.6 | 16.0 +2.6 | 16.5 +2.6 | - | - | - |
600 | ±0.5 | 19.0 +3.0 | 20.0 +3.0 | - | - | - | |
